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1.
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Responsible service
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1.1.
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Airports Authority of India is responsible for the overall administration of the Aeronautical Telecommunication, Navigation and Surveillance (CNS) facilities in India.
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1.2.
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The Chairman
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Airports Authority of India
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Rajiv Gandhi Bhavan
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Safdarjung Airport
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New Delhi 110 003
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INDIA
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Tel - + 91 11 2463 2930
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Fax - + 91 11 2464 1088
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Email -
chairman@aai.aero
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AFS - VIDDYXAC
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2.
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The service is provided in accordance with the provisions contained in the following documents -
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• Annex 10 - Aeronautical Telecommunication
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• Doc 8400 - Procedures for Aircraft Operating Agencies, Aeronautical Authorities and Services
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• Doc 7030 - Regional Supplementary Procedures
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• Doc 7910 - Location Indicators
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3.
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Area of responsibility
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3.1.
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Communication services are provided for the entire Indian FIRs and the area of responsibility covers all aeronautical telecommunications, navigation and surveillance services in India.
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3.2.
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Responsibility for the day-to-day operations is vested with General Manager(CNS) in respect of Mumbai, Delhi, Kolkata & Chennai and with concerned General Manager(CNS- Region) for all other stations. They are also responsible for the application of the regulations concerning the design, type and installation of CNS facilities and Services.
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3.3.
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Inquiries, suggestions or complaints regarding any telecommunication, navigation and surveillance services could be referred to the relevant General Manager(CNS) or to Executive Director(CNS-OM), AAI, CHQ or to Member(ANS), AAI, CHQ, as appropriate (their address and telephone numbers are appended below) depending on the circumstances. Inquiries regarding AFTN , DSC and HF Services should normally be addressed to the Unit responsible for the provision of these services. Some of the facilities are owned and run by Armed Forces of India.
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4.2.
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Mobile/Fixed service
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4.2.1.
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Mobile service
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4.2.1.1.
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The aeronautical stations maintain a continuous watch on the frequencies stated within the published hour of service unless otherwise stated.
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4.2.1.2.
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An aircraft shall normally communicate with ATS unit providing service in the area in which the aircraft is flying. Aircraft should maintain a continuous watch on the appropriate frequency of the ATS unit and shall not abandon watch, except in an emergency, without informing the ATS unit. Aircraft shall, to the extent possible, also maintain watch on the emergency frequency 121.5 MHz.
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4.2.1.3.
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All radio telephony communications between aircraft and Indian ATS units are recorded.
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4.2.1.4
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CPDLC Services at Mumbai, Delhi, Kolkata and Chennai airports through FANS=1A Data Link.
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4.2.1.5
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D-ATIS & D-VOLMET services are provided on trial basis through Pre-FANS Data Link.
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4.2.2.
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Fixed service (AFS)
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4.2.2.1.
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Message to be transmitted over the aeronautical fixed telecommunication network (AFTN) will only be accepted if they satisfy the following requirements-
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4.2.3.1. Annex 10, Volume II, Chapter 3 and para 3.3
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4.2.3.1. They are prepared in the form specified in Annex 10
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4.2.3.1. AFTN message entered by the AFTN origin shall not exceed 2100 characters in length
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4.2.2.2.
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General aircraft operating agency messages are not accepted over the AFTN in India.
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4.2.3.
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Broadcasting service
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4.2.3.1.
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Automatic Terminal Information Service (ATIS)
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4.2.3.1.1.
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ATIS is provided at major airports in India.
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4.2.3.1.2.
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The broadcast related to the terminal aerodrome and is continuous and repetitive.
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4.2.3.1.3.
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The ATIS broadcast message contains information for arriving and departing aircraft in the order indicated below:
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i) Name of the aerodrome
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ii) Designator i.e. the word “INFORMATION” and identification letter from ICAO alphabet
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iii) Time of observation
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iv) Type of approach to be expected
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v) The runway(s) in use
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vi) Transition level
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vii) Other essential operational information
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viii) Surface wind direction and speed, including significant variations
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ix) *Visibility and when applicable RVR
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x) *Present weather
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xi) *Cloud below 5000 Ft or below the highest minimum sector altitude whichever is greater, cumulonimbus
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xii) * These elements are replaced by term “CAVOK”, whenever applicable.
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xiii) Air temperature
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xiv) Dew point temperature
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xv) Altimeter setting(s)
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xvi)Any available information on significant meteorological phenomena in the approach and climb out areas including wind shear and information on recent weather of operational significance contained in the MET report
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xvii) Trend forecast, when applicable
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xviii) The word “INFORMATION” followed by “designator” and the word “OUT”
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